Apparatus

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sensors Mode-S transponder

4BA950

ICAO 24-bit transponder address · allocated to Turkey

Currently assigned to TC-JJP · BOEING 777-300ER

Hex
4BA950
Octal
22724520
Decimal
4,958,544
Country
TR
Tail
TC-JJP
Type
B77W
No current signal · last broadcast 2h ago
Flights observed
152
Distinct callsigns
20
Country
TR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4BA950.

Country allocation

The ICAO 24-bit address 4BA950 falls within the block assigned to Turkey (TR) by ICAO Annex 10, Volume III. Every aircraft registered in Turkey receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
THY9 - 9 2026-07-13
THY84 - 8 2026-06-21
THY10 Turkish Airlines 7 2026-04-30
THY85 - 6 2026-06-22
THY3 - 6 2026-07-12
THY25 Turkish Airlines 6 2026-04-15
THY125 - 5 2026-04-13
THY91 Turkish Airlines 4 2026-06-25
THY90 - 4 2026-06-25
THY71 - 4 2026-07-11
THY4 - 4 2026-07-12
THY24 Turkish Airlines 4 2026-04-14
THY199 - 4 2026-07-02
THY8FW Turkish Airlines 3 2026-05-06
THY73 Turkish Airlines 3 2026-05-11
THY70 - 3 2026-07-11
THY6KL Turkish Airlines 3 2026-05-06
THY2NP - 3 2026-07-08
THY2AY - 3 2026-07-09
THY26 - 3 2026-07-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 THY9 - Jul 13, 11:55 UTCJul 14, 01:05 UTC13h 10m
2026-07-13 THY8XS - Jul 13, 08:25 UTCJul 13, 09:25 UTC1h 0m
2026-07-13 THY8HX - Jul 13, 05:50 UTCJul 13, 06:45 UTC55m
2026-07-12 THY4 - Jul 12, 17:10 UTCJul 13, 02:15 UTC9h 5m
2026-07-12 THY3 - Jul 12, 04:45 UTCJul 12, 14:30 UTC9h 45m
2026-07-11 THY71 - Jul 11, 17:15 UTCJul 12, 00:30 UTC7h 15m
2026-07-11 THY71 - Jul 11, 15:00 UTCJul 11, 15:15 UTC15m
2026-07-11 THY70 - Jul 11, 07:55 UTCJul 11, 08:25 UTC30m
2026-07-10 THY70 - Jul 10, 22:55 UTCJul 11, 06:10 UTC7h 15m
2026-07-10 THY12 - Jul 10, 05:50 UTCJul 10, 14:30 UTC8h 40m
2026-07-09 THY11 - Jul 9, 16:50 UTCJul 10, 02:55 UTC10h 5m
2026-07-09 THY2AY - Jul 9, 09:55 UTCJul 9, 13:35 UTC3h 40m
2026-07-09 THY2AY - Jul 9, 02:35 UTCJul 9, 05:55 UTC3h 20m
2026-07-08 THY5KM - Jul 8, 11:45 UTCJul 9, 00:20 UTC12h 35m
2026-07-08 THY2NP - Jul 8, 08:15 UTCJul 8, 08:55 UTC40m
2026-07-07 THY55 SIN → IST Jul 7, 15:30 UTCJul 8, 06:40 UTC15h 10m
2026-07-06 THY54 - Jul 6, 23:30 UTCJul 7, 09:40 UTC10h 10m
2026-07-05 THY4 - Jul 5, 18:25 UTCJul 6, 03:30 UTC9h 5m
2026-07-05 THY3 IST → JFK Jul 5, 05:35 UTCJul 5, 15:50 UTC10h 15m
2026-07-04 THY27 PVG → IST Jul 4, 17:25 UTCJul 5, 01:30 UTC8h 5m
2026-07-04 THY26 - Jul 4, 00:15 UTCJul 4, 21:15 UTC21h 0m
2026-07-03 THY8AK - Jul 3, 18:00 UTCJul 3, 18:45 UTC45m
2026-07-03 THY5HS - Jul 3, 15:05 UTCJul 3, 15:55 UTC50m
2026-07-03 THY8 - Jul 3, 03:15 UTCJul 3, 12:15 UTC9h 0m
2026-07-02 THY7 IST → IAD Jul 2, 14:20 UTCJul 3, 01:00 UTC10h 40m
2026-07-02 THY2JT - Jul 2, 09:30 UTCJul 2, 11:40 UTC2h 10m
2026-07-02 THY6AG - Jul 2, 04:55 UTCJul 2, 07:00 UTC2h 5m
2026-07-02 THY199 - Jul 2, 00:30 UTCJul 2, 00:50 UTC20m
2026-07-01 THY199 - Jul 1, 13:00 UTCJul 1, 23:55 UTC10h 55m
2026-06-30 THY198 - Jun 30, 23:20 UTCJul 1, 09:45 UTC10h 25m
2026-06-30 THY2NA - Jun 30, 18:25 UTCJun 30, 20:20 UTC1h 55m
2026-06-30 THY3GK IST → FCO Jun 30, 14:10 UTCJun 30, 16:05 UTC1h 55m
2026-06-30 THY2 - Jun 30, 01:09 UTCJun 30, 09:50 UTC8h 41m
2026-06-29 THY1 IST → JFK Jun 29, 12:05 UTCJun 29, 21:54 UTC9h 50m
2026-06-28 THY4 - Jun 28, 17:04 UTCJun 29, 02:05 UTC9h 0m
2026-06-28 THY3 IST → JFK Jun 28, 05:15 UTCJun 28, 14:50 UTC9h 35m
2026-06-27 THY4SD - Jun 27, 18:15 UTCJun 27, 21:25 UTC3h 10m
2026-06-27 THY2LD - Jun 27, 13:00 UTCJun 27, 16:04 UTC3h 5m
2026-06-27 THY2 - Jun 27, 00:34 UTCJun 27, 09:19 UTC8h 45m
2026-06-26 THY1 IST → JFK Jun 26, 11:40 UTCJun 26, 21:39 UTC10h 0m
2026-06-26 THY2YR BEY → IST Jun 26, 07:24 UTCJun 26, 08:54 UTC1h 30m
2026-06-26 THY39GV IST → BEY Jun 26, 04:04 UTCJun 26, 05:24 UTC1h 20m
2026-06-25 THY91 ICN → IST Jun 25, 15:44 UTCJun 26, 00:05 UTC8h 20m
2026-06-25 THY91 ICN → IST Jun 25, 14:29 UTCJun 25, 14:50 UTC20m
2026-06-25 THY90 - Jun 25, 08:20 UTCJun 25, 08:45 UTC25m
2026-06-24 THY90 - Jun 24, 23:34 UTCJun 25, 07:34 UTC8h 0m
2026-06-24 THY12 - Jun 24, 05:05 UTCJun 24, 14:00 UTC8h 55m
2026-06-23 THY11 IST → JFK Jun 23, 16:05 UTCJun 24, 02:20 UTC10h 15m
2026-06-23 THY2NP - Jun 23, 07:55 UTCJun 23, 08:39 UTC45m
2026-06-23 THY3YH - Jun 23, 05:20 UTCJun 23, 05:54 UTC35m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the TC-JJP page for operator, model, and routing details .

Mode-S 4BA950 frequently asked

What is Mode-S code 4BA950?
4BA950 is an ICAO 24-bit transponder address. Allocated to Turkey. Assigned to TC-JJP.
Where is Mode-S 4BA950 registered?
Mode-S code 4BA950 is allocated to Turkey (TR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4BA950 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4BA950, octal 22724520, decimal 4,958,544.
What flights does 4BA950 operate?
Mode-S 4BA950 has broadcast 20 distinct callsigns, including THY9, THY84, THY10, THY85, THY3.